Home / 12,021.90-16,570.35-9,637.26

Finding the Fourth Proportional to 12,021.90, 16,570.35 and 9,637.26

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Solution

The fourth proportional to 12,021.90, 16,570.35 and 9,637.26 is: 13,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.90 : 16,570.35 = 9,637.26 : x
  2. Step 2: Convert to fraction form
    12,021.90/16,570.35 = 9,637.26/x
  3. Step 3: Cross multiply
    12,021.90x = 16,570.35 × 9,637.26
  4. Step 4: Simplify right side
    12,021.90x = 159,692,771.24
  5. Step 5: Solve for x
    x = 159,692,771.24/12,021.90
  6. Step 6: Final answer
    x = 13,283.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.